Wi-Fi Data Loggers Support Bluetooth For IoT Apps

To monitor, collect and share temperature data wirelessly, T&D Corporation’s TR-7wb Series Wi-Fi-connected data loggers are now equipped with Bluetooth to access mobile devices through the T&D Thermo dedicated mobile app. The series supports multiple sensors and comes in four models: TR-71wb, TR-72wb, TR-72wb-S and TR-75wb.


The data loggers connect seamlessly to T&D’s cloud-based WebStorage Service via Wi-Fi and through the T&D Thermo app, both provided free of charge. Measured data can now be automatically uploaded, stored and viewable on mobile devices anytime and from anywhere. The T&D Thermo app was also recently redesigned to add Bluetooth connectivity and provide an improved user interface for quicker access to critical data.

Free Monthly Newsletter

Compelling read? Subscribe to FierceEmbeddedTech!

The embedded tech sector runs the market’s trends. FierceEmbeddedTech subscribers rely on our suite of newsletters as their must-read source for the latest news, developments and analysis impacting their world. Sign up today to get news and updates delivered to your inbox and read on the go.


The compact, battery-powered devices retain all the features of the original TR-7wf Series and can be deployed in virtually any quantity to form a unified data reporting network, connected to the internet via Wi-Fi, or through a Smart Device using Bluetooth. Other features of the TR-7wb series include:

  • The TR-71wb model utilizes two external interchangeable sensors which have a temperature range of -40 to 110°C and a temperature accuracy of + or – 0.3°C.
  • The TR-72wb model utilizes a THA-3001 sensor which has a temperature range of 0 to 55°C, a humidity range of 10 to 95 percent RH humidity range, a temperature accuracy of + or _ 0.5°C and a humidity accuracy of + or – five percent.
  • The TR-72wb-S model utilizes the brand-new SHA-3151 sensor which has a temperature range of -25 to 70°C, a humidity range of zero to 99 percent RH, a temperature accuracy of + or _ 0.3°C and a humidity accuracy of + or – two and a half percent.
  • The TR-75wb model is compatible with the following Thermocouple sensors (K, J, T, E, S, R) and has a temperature range of -199 to 1760° C.  Type K, J, T and E sensors have a temperature accuracy of + or - (0.5°C + 0.3 percent of reading), while the type S and R sensors have a temperature accuracy of + or - (1.5°C + 0.3 percent of reading).


For more information, take gander at the TR-7wb Series product page.

Suggested Articles

Brookings and ITIF argue that Congress should invest $100B in heartland job growth centers over a decade

Sensor features LED flicker mitigation capabilities for better vision

Intel also bought Nervana for AI in 2016